North America Native Plant

Parkland Panicgrass

Botanical name: Panicum tenuifolium

USDA symbol: PATE6

Life cycle: perennial

Habit: grass

Native status: Native to Hawaii  

Synonyms: Panicum molokaiense O. Deg. & Whitney (PAMO)  âš˜  Panicum nephelophilum Gaudich. var. rhyacophilum Hillebr. (PANER)  âš˜  Panicum nephelophilum Gaudich. var. tenuifolium (Hook. & Arn.) Hillebr. (PANET)   

Parkland Panicgrass: Hawaii’s Delicate Native Treasure Meet parkland panicgrass (Panicum tenuifolium), a graceful Hawaiian native that’s as elegant as it is ecologically important. This perennial grass might not be the showiest plant in your garden, but it brings a subtle beauty and authentic island character that’s hard to replicate with ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Parkland Panicgrass: Hawaii’s Delicate Native Treasure

Meet parkland panicgrass (Panicum tenuifolium), a graceful Hawaiian native that’s as elegant as it is ecologically important. This perennial grass might not be the showiest plant in your garden, but it brings a subtle beauty and authentic island character that’s hard to replicate with non-native alternatives.

A True Hawaiian Original

Parkland panicgrass is endemic to Hawaii, meaning it evolved nowhere else on Earth. This graminoid (that’s botanist-speak for grass-like plant) has been quietly gracing the Hawaiian landscape for millennia, adapting perfectly to the islands’ unique conditions.

You’ll find this native beauty naturally occurring throughout Hawaii, from sea level to higher elevations.

Important Conservation Note

Before you fall in love with this plant, here’s something crucial to know: Parkland panicgrass has a Global Conservation Status of S3, which means it’s considered vulnerable. With only an estimated 21-100 occurrences or 3,000-10,000 individuals remaining, this grass needs our help to survive.

If you’re interested in growing parkland panicgrass, please only source it from reputable native plant nurseries that propagate their stock responsibly. Never collect from wild populations – every plant counts for this species’ survival.

Why Choose Parkland Panicgrass?

This delicate perennial grass offers several compelling reasons to include it in your Hawaiian landscape:

  • Authentic native character: Support Hawaii’s unique ecosystem while creating genuine island ambiance
  • Low maintenance: Once established, it’s quite drought-tolerant and requires minimal care
  • Habitat value: Provides structure and shelter for small wildlife and insects
  • Erosion control: Its root system helps stabilize soil on slopes
  • Subtle beauty: Fine-textured foliage and airy seed heads add movement and texture

Growing Parkland Panicgrass Successfully

This Hawaiian native is surprisingly adaptable once you understand its preferences. Here’s how to give it the best chance to thrive:

Climate Requirements: Parkland panicgrass is suited for USDA hardiness zones 10-11, making it perfect for Hawaii’s tropical and subtropical conditions but limiting its use in most mainland locations.

Light and Soil: This grass appreciates partial shade to full sun and thrives in well-draining soils. It’s not particularly fussy about soil type but doesn’t tolerate waterlogged conditions.

Watering: While it can handle drought once established, parkland panicgrass performs best with moderate, consistent moisture – think natural rainfall patterns rather than daily sprinkler sessions.

Landscape Uses

Parkland panicgrass shines in several garden scenarios:

  • Native Hawaiian gardens: Perfect for authentic island landscaping
  • Restoration projects: Excellent choice for rehabilitating degraded native habitats
  • Xerophytic landscapes: Works well in water-wise garden designs
  • Naturalistic plantings: Provides texture and movement in informal garden styles

Caring for Your Parkland Panicgrass

One of the best things about this native grass is its low-maintenance nature. Once established, it requires minimal intervention:

  • Water during dry spells for the first year while roots establish
  • Remove spent flower heads if you prefer a tidier appearance
  • Cut back annually to promote fresh growth
  • Avoid over-fertilizing – native plants typically prefer lean soils

The Bottom Line

Parkland panicgrass isn’t just another ornamental grass – it’s a piece of Hawaii’s natural heritage that deserves our protection and appreciation. While its vulnerable status means we need to be thoughtful about sourcing, growing this native beauty is one way to support conservation while creating an authentically Hawaiian landscape.

Remember, every garden that includes responsibly-sourced native plants like parkland panicgrass becomes a small sanctuary for Hawaii’s unique biodiversity. Your landscape choices really can make a difference!

Parkland Panicgrass

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Panicum L. - panicgrass

Species

Panicum tenuifolium Hook. & Arn. - parkland panicgrass

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA